| km² | country | % Correct |
|---|---|---|
| 900,000 | Egypt | 95%
|
| 2,100,000 | Algeria | 91%
|
| 2,000,000 | China | 91%
|
| 500,000 | United States | 91%
|
| 1,900,000 | Russia | 89%
|
| 2,100,000 | Saudi Arabia | 88%
|
| 1,600,000 | Libya | 87%
|
| 1,500,000 | Sudan | 87%
|
| 2,500,000 | Australia | 84%
|
| 800,000 | Chad | 83%
|
| 400,000 | Iran | 82%
|
| 750,000 | Niger | 82%
|
| 400,000 | Mongolia | 80%
|
| 750,000 | Mali | 78%
|
| 2,000,000 | Canada | 76%
|
| 1,000,000 | Mauritania | 71%
|
| 500,000 | Yemen | 64%
|
| 400,000 | Argentina | 63%
|
| 450,000 | Pakistan | 62%
|
| 500,000 | Namibia | 55%
|
| 450,000 | Somalia | 51%
|